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Pneumoconiosis

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https://www.readbyqxmd.com/read/29225839/a-case-of-empyema-and-septic-arthritis-due-to-nocardia-farcinica
#1
Takashi Ishiguro, Hiroaki Yoshioka, Shoko Kawai, Shin-Ichi Katsumata, Tohru Gonoi, Noboru Takayanagi
Septic arthritis due to Nocardia sp. should be suspected when a patient with risk factors such as pneumoconiosis or diabetes mellitus develops joint symptoms, especially if the patient has had nocardiosis in other sites.
December 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/29210092/comparison-of-digital-and-film-chest-radiography-for-detection-and-medical-surveillance-of-silicosis-in-a-setting-with-a-high-burden-of-tuberculosis
#2
Alfred Franzblau, Jim teWaterNaude, Ananda Sen, Hannah d'Arcy, Jacqueline S Smilg, Khanyakude S Mashao, Cristopher A Meyer, James E Lockey, Rodney I Ehrlich
BACKGROUND: Continuing use of analog film and digital chest radiography for screening and surveillance for pneumoconiosis and tuberculosis in lower and middle income countries raises questions of equivalence of disease detection. This study compared analog to digital images for intra-rater agreement across formats and prevalence of changes related to silicosis and tuberculosis among South African gold miners using the International Labour Organization classification system. METHODS: Miners with diverse radiological presentations of silicosis and tuberculosis were recruited...
December 6, 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/29202602/clinical-significance-of-serum-anti-gm-csf-autoantibody-levels-in-autoimmune-pulmonary-alveolar-proteinosis
#3
Masaki Nishimura, Etsuro Yamaguchi, Ayumu Takahashi, Nobuhiro Asai, Eisuke Katsuda, Toyohiro Ohta, Yoshinori Ohtsuka, Kenshi Kosaka, Ayako Matsubara, Hiroyuki Tanaka, Norihito Yokoe, Akihito Kubo, Satoshi Konno, Kenji Baba
AIM: Precise clinical significance of antigranulocyte-macrophage colony stimulating factor (GM-CSF) autoantibody levels in autoimmune pulmonary alveolar proteinosis (aPAP) has not been well studied. METHODS: We obtained sera from 50 healthy controls, 46 aPAP patients, 50 with sarcoidosis, 52 with idiopathic interstitial pneumonia and 75 with pneumoconiosis. The clinical course of aPAP patients was assessed by scoring computed tomography images in 19 patients. RESULTS: The cut-off level of anti-GM-CSF IgG for discrimination between aPAP and other diffuse lung diseases was 2...
December 5, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/29200837/the-relationship-of-ssri-and-snri-usage-with-interstitial-lung-disease-and-bronchiectasis-in-an-elderly-population-a-case-control-study
#4
Ted Rosenberg, Rory Lattimer, Patrick Montgomery, Christian Wiens, Liran Levy
Background: The association between interstitial lung disease (ILD) and selective serotonin reuptake inhibitors and serotonin norepinephrine reuptake inhibitors (SSRI/SNRI) has been previously described in published case reports. However, its prevalence may be more common than expected. We examined the association between SSRI/SNRI usage and presence of ILD and or bronchiectasis (ILD/B) in an elderly population. Methods: We conducted a retrospective case series and case-control study involving all 296 eligible elderly patients in one primary care geriatric practice in Victoria, BC, Canada...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/29157141/experimental-study-on-effects-of-drilling-parameters-on-respirable-dust-production-during-roof-bolting-operations
#5
Hua Jiang, Yi Luo, Joe McQuerrey
Underground coalmine roof bolting operators exhibit a continued risk for overexposure to airborne levels of respirable coal and crystalline silica dust from the roof drilling operation. Inhaling these dusts can cause coal worker's pneumoconiosis and silicosis. This research explores the effect of drilling control parameters, specifically drilling bite depth, on the reduction of respirable dust generated during the drilling process. Laboratory drilling experiments were conducted and results demonstrated the feasibility of this dust control approach...
November 20, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/29149883/serum-concentrations-of-krebs-von-den-lungen-6-surfactant-protein-d-and-matrix-metalloproteinase-2-as-diagnostic-biomarkers-in-patients-with-asbestosis-and-silicosis-a-case-control-study
#6
Changjiang Xue, Na Wu, Xue Li, Meihua Qiu, Xuqin Du, Qiao Ye
BACKGROUND: Asbestosis and silicosis are progressive pneumoconioses characterized by interstitial fibrosis following exposure to asbestos or silica dust. We evaluated the potential diagnostic biomarkers for these diseases. METHODS: The serum concentrations of Krebs von den Lungen-6 (KL-6), surfactant protein D (SP-D), and matrix metalloproteinase-2 (MMP-2), MMP-7, and MMP-9 were measured in 43 patients with asbestosis, 45 patients with silicosis, 40 dust-exposed workers (DEWs) without pneumoconiosis, and 45 healthy controls (HCs)...
November 17, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29116886/coal-miner-participation-in-a-job-transfer-program-designed-to-prevent-progression-of-pneumoconiosis-united-states-1986-2016
#7
Laura Reynolds, Cara N Halldin, A Scott Laney, David J Blackley
The Part 90 program was designed to prevent progression of pneumoconiosis in U.S. coal miners by establishing their right to transfer to a less dusty job in the mine. We calculated the proportion of Part 90-eligible miners who participated during 1986-2016, examined participation by region, and compared characteristics of miners by participation status. Of the 3,547 eligible miners, 14.4% exercised their Part 90 option. Miners working in states outside central Appalachia, and those with more severe pneumoconiosis, were more likely to participate...
November 8, 2017: Archives of Environmental & Occupational Health
https://www.readbyqxmd.com/read/29116190/estimated-economic-costs-of-coal-workers-pneumoconiosis-among-coal-workers-redeployed-from-the-fuxin-mining-group-in-china
#8
Bing Han, Hongbo Liu, Guojiang Zhai, Qun Wang, Jie Liang, Mengcang Zhang, Kai Cui, Fuhai Shen, Hongbo Yi, Jie Chen
Our research estimated the economic costs of possible cases of coal workers' pneumoconiosis (CWP) among redeployed coal workers from the Fuxin Mining Industry Group. The study cohort included 19,116 coal workers between 1965 and 2012. We estimated direct and indirect economic costs due to possible current and future CWP cases among redeployed coal workers. We found as of 2012 that 141 possible CWP cases might have resulted in economic costs of $37.52 million ($33.84 million were direct and $3.68 million indirect)...
November 7, 2017: Journal of Public Health Policy
https://www.readbyqxmd.com/read/29109332/hydrogen-enriched-water-eliminates-fine-particles-from-the-lungs-and-blood-by-enhancing-phagocytic-activity
#9
Jieun Choi, Eun Suk An, Young-Hwan Ban, Da Woom Seo, Tae-Su Kim, Sung-Pyo Lee, You Lin, Ehn-Kyoung Choi, Yun-Bae Kim
Particulate matters (PM) are one of the major body burdens leading to diseases. We investigated the capacities of a hydrogen-enriched water (HW) eliminating carbon nanoparticles (CNP) and carbon microparticles (CMP) from the lungs and blood, respectively. In CNP-elimination test, rats were orally administered with purified water (PW) or HW (10 or 30 mL/kg/day) for 10 weeks. At the time point of 4 weeks, the rats were challenged with intratracheal instillation of CNP (4 mg). CNP accumulated in the airways and alveoli, and induced inflammatory lesions...
November 1, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/29081117/-research-progress-on-pneumoconiosis-caused-by-iron-and-its-compounds
#10
M F Jiang, H Zhang, H L Bao
No abstract text is available yet for this article.
July 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29081110/-coal-workers-s-pneumoconiosis-combined-with-invasive-pulmonary-aspergillosis-a-case-report
#11
Y R Wang, Q Ye
No abstract text is available yet for this article.
July 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29081108/-bservation-of-the-clinical-symptoms-of-pneumoconiosis-by-rock-salt-aerosol-therapy
#12
Y Wang, X C Liu, P Jiang
No abstract text is available yet for this article.
July 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29081101/-investigation-of-oxygen-therapy-compliance-for-patients-with-pneumoconiosis-accorded-with-oxygen-therapy-indications
#13
L Liu, Y H Zhang, A Q Li
No abstract text is available yet for this article.
July 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29081100/-the-clinical-study-on-the-correlation-of-lysophosphatidic-acid-and-vascular-endotheli-growth-factor-and-endothelin-in-serum-of-pneumoconiosis
#14
L J Mao, Y L Zhang, C C Cong, L Guan, S Q Li, J Y Zhao
Objective: To explore the role of lysophosphatidic acid, vascular endothelial growth facor and endothelin in the pathogenesis of pulmonary fibrosis in coal workers'pneumoconiosis patients, the relationship of lysophosphatidic acid, VEGF and ET in serum was studied. Methods: Sixty two pneumoconiosis patients were selected as cases group, which included 23 cases of stage Ⅰ, 25 cases of stageⅡand 14 cases of stageⅢ. Twenty workers were selected as dust exposure group who exposed to coal dust for more than 2 years and had not been diagnosed as pneumoconiosis...
July 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29081099/-window-settings-in-the-application-of-pneumoconiosis-digital-radiography
#15
J J Zhao, Z Q Jiang, M Zhang, Y Xiao, J Q Chen
Objective: To explore window settings technology in the digital radiography of pneumoconiosis, and to improve the quality of the digital chest radiographs. Methods: 25 female workers in a asbestos product processing enterprise were examined with high-kV and DR chest radiographies on same day. Consistency of pneumoconiosis diagnosis results: were assessed. Results In the 75 groups of radiograph quality results, there are 62 groups that need to be processed window in order to make the correct diagnosis. The crude agreement among two chest radiographs was 28% for the profusion of small opacities and 76% for the classification of pneumoconiosis, the weighted kappa value (κ) was 0...
July 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29041938/development-of-breath-test-for-pneumoconiosis-a-case-control-study
#16
Hsiao-Yu Yang, Ruei-Hao Shie, Che-Jui Chang, Pau-Chung Chen
BACKGROUND: Lipid peroxidation plays an important role in the pathogenesis of pneumoconiosis. Volatile organic compounds (VOCs) generated from lipid peroxidation might be used to detect pneumoconiosis. The objective of this study was to develop a breath test for pneumoconiosis. METHODS: A case-control study was designed. Breath and ambient air were analysed by gas chromatography/mass spectrometry. After blank correction to prevent contamination from ambient air, we used canonical discriminant analysis (CDA) to assess the discrimination accuracy and principal component analysis (PCA) to generate a prediction score...
October 17, 2017: Respiratory Research
https://www.readbyqxmd.com/read/29021460/a-case-of-dental-technicians-pneumoconiosis
#17
Masaki Okamoto, Masaki Tominaga, Shigeki Shimizu, Chiyo Yano, Ken Masuda, Masayuki Nakamura, Yoshiaki Zaizen, Takashi Nouno, Satoshi Sakamoto, Mitsuru Yokoyama, Tomotaka Kawayama, Tomoaki Hoshino
A 40-year-old female dental technician visited our hospital for the investigation of a chest X-ray abnormality. Chest computed tomography demonstrated centrilobular nodules and lung volume reduction, and her serum KL-6 level was elevated. A histological analysis of the specimens obtained on a surgical lung biopsy showed peribronchiolar fibrosis with pigmented macrophages and cholesterol clefts. An energy-dispersive X-ray analysis showed that these lung tissues contained some metals, including indium. The serum indium level was also elevated...
October 11, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28973621/trends-and-patterns-of-differences-in-chronic-respiratory-disease-mortality-among-us-counties-1980-2014
#18
Laura Dwyer-Lindgren, Amelia Bertozzi-Villa, Rebecca W Stubbs, Chloe Morozoff, Shreya Shirude, Mohsen Naghavi, Ali H Mokdad, Christopher J L Murray
Importance: Chronic respiratory diseases are an important cause of death and disability in the United States. Objective: To estimate age-standardized mortality rates by county from chronic respiratory diseases. Design, Setting, and Participants: Validated small area estimation models were applied to deidentified death records from the National Center for Health Statistics and population counts from the US Census Bureau, National Center for Health Statistics, and Human Mortality Database to estimate county-level mortality rates from 1980 to 2014 for chronic respiratory diseases...
September 26, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28963659/squamous-cell-carcinoma-of-the-lung-showing-a-ground-glass-nodule-on-high-resolution-computed-tomography-associated-with-pneumoconiosis-a-case-report
#19
Yuriko Terada, Masaaki Sato, Hiroyuki Abe, Hideki Kuwano, Kazuhiro Nagayama, Jun-Ichi Nitadori, Masaki Anraku, Jun Nakajima
BACKGROUND: Adenocarcinoma with lepidic growth pattern presents as a ground glass nodule (GGN) on high resolution computed tomography (CT), whereas peripheral pulmonary squamous cell carcinoma (SCC) usually presents as a solid nodule. We herein report a rare case of pulmonary SCC extending along the alveolar lumen representing as a GGN on a CT scan in a patient with pneumoconiosis. CASE PRESENTATION: A 77-year-old man with pneumoconiosis was found to have a gradually enlarging GGN in the right lower lobe of the lung on CT...
September 29, 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28953250/lrba-gene-polymorphisms-and-risk-of-coal-workers-pneumoconiosis-a-case-control-study-from-china
#20
Yi Liu, Jingjin Yang, Qiuyun Wu, Ruhui Han, Weiwen Yan, Jiali Yuan, Xiaoming Ji, Yan Li, Wenxi Yao, Chunhui Ni
The lipopolysaccharide (LPS)-responsive beige-like anchor protein (LRBA) is a member of the WDL-BEACH-WD (WBW) gene family. Defects in this gene are associated with the disordered autoimmunity in various diseases, including pulmonary fibrosis. In this study, we investigated the association between the functional polymorphisms in LRBA and risk of coal workers' pneumoconiosis (CWP) in a Chinese population. Three potentially functional polymorphisms (rs2290846, rs3749574, and rs1782360) in LRBA were genotyped and analyzed in a case-control study, including 703 CWP cases and 705 controls...
September 27, 2017: International Journal of Environmental Research and Public Health
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